>> while paul ryan delivered a prosecution of the obama administration's record. >> they haven't put a credible solution on the table. this is what politicians do when they don't have a record to run on. >> does a vice presidential debate impact the presidential race? some analysts say biden's debate tactics help the president. >> he's been around politics for a long time. i don't think he stepped outside. it's who joe biden is. >> joe biden's interruptions came off as inpolite. >> he was smiling and grimacing and grinning. it's almost like they put joker juice in the water he had. >> from now on, the focus will stay squarely on the president and mitt romney. in a race that is tight and running down on time. >> looking ahead now, president obama will be heading to williamsburg, virginia, this weekend. that is where he will hold up with his advisers and prepare for the next presidential debate. that's going to be on tuesday, october 16, in long island, new york. mitt romney's campaign says they are expecting a regular part of the schedule in the remaining three week of this campaign.